html,body{
    margin: 0;
    height: 100%;
    width: 100%;
}
#head{
    width: 100%;
    height: 990px;
}
.headback{
    width: 100%;
    height: 990px;

}
.headbackcolor{
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 100%;
    background-color: rgba(20, 20, 20, 0.65);
}
/* #headbackimage{
    width: 100%;
    height: 100%;
} */